Edger set-works.



I. SPARKS. EDGER SET worms.

APPLICATION FILED FEB-25. I914.

1',15G,551.. Patented Aug. 17,1915.

6 SHEETS-SHEET I.

ELL ELL ZVZZ/zza asg- In /577/02 J. SPARKS.

EDGER SET WORKS,

APPLICATION man FEB. 25. 1914.

1,150, 51 a Patented Aug. 17, 1915.

6 SHEETS-SHEET 2.

J. SPARKS.

EDGER SET WORKS.

APPLICATION FILED FEB. 25. 1914.

15156,,551 Patented Aug. 17, 1915.

6 SHEETS-SHEET 3.

J. SPARKS.

EDGERSE T WORKS.

APPLICATION FILED FEB- 25' 1914.

Patented Aug. 17, 1915.

6 $HEETSSHEET 4- formal? J. SPARKS.

EDGER SET WORKS.

APPLICATION FILED FEB. 25. 1914.

Patented Aug. 17, 1915.

6 SHEETS-SHEET 5. 57E

J. SPARKS.

EDGER SET WORKS.

APPLICATION FILED FEB. 25. 1914.

Patented Aug. 17, 1915.

6 SHEETSSHEET 6.

JOSEPH SPARKS, OF PORTLAND, OREGON.

EDGER SET-\VORKS.

Specification of Letters Patent.

Patented ring. '3, 19515.

Application filed February 25, 191 4. Serial No. 821,001.

To all whom it may con cern Be it known that I, Josnrn SPARKS, a citizen of the United States, residing at Portland. in the county of Multnomah and State of Oregon, have invented certain new and useful improvements in Edger SetlVorks, of which the following is a specification.

lVIy invention relates to improvements in edger set-works and has for its object to .man to be located in a safe position overlooking the edger. My device may also be located at the front of the edger if desired and has great advantage over the hand propelled setting lover both in accuracy of adj ustment and ease of manipulation.

I attain the object of my invention by means of the construction illustrated in the accompanying drawings in which- Figure 1 is a front elevation of a gangedger equipped with my improved powerset-works located in proximity to the feed rolls. Fig. 2 is a plan view -on? the edger and set-Works as shown in Fig. 1. with a portion of the feed rolls removed in order to show the method of controlling the disposition of the saws through the medium of the power-set-works. Fig. 3 is a front elevation of a gang-edger and an overhead-located power-set-works. Fig. 4 is a side elevation of the control-carriage of my powerset-Works. Fig. 5 is a plan view of the control carriage with a portion of the operating cylinder and piston shown in sectional detail. Fig. 6 is a side elevation of one of the three blocks comprising the control carriage and depicts the method of controlling the air supply and exhaust. Fig. 7 is a rear elevation of the block shown in Fig. 6. Fi g. 8 is a bottom view of the above mentioned block with the valve rod removed. Fig. 9 illustrates the valve rod in detail. Fig. 10 is a section through the val ve rod taken on the line A-A of Fig. 9. Fig. 11 is a side elevation of the inner block of the control carriage. and illustrates the method of re versing the direction of the propelling piston within its cylinder. Fig. 12 is a see tional elevation of the block shown in Fig. 1]., taken on the line l -B. Fig. 13 is a sectional plan view of the intermediary block taken on the line C-C in Fig. 11. Fig. it shows a top-plan view or the intermediary block. Fig. 15 is a sectional trans verse elevation of the piston. rod, taken on the line DD of Fig. 1:2. Fig. 16 is a top plan view of the gripping block shown dotted in Fig. i. F 1? is a sectional elevat-ion ot' a modified form. of control carriage blocks, illustrating the method of oil'- setting the reversing parts to permit the lowering of the piston rod and its cylinder when required to arrange them. as shown in Fig. 1. Fig. 18 is a sectional plan View of the modified form of blocks shown in Fig. 17 taken on the line E-E. Fig. 19 is a side elevation of the dividing plate shown in Fig. 17.

Referring to the drawings, 1 designates a control carriage comprising 3 blocks, 1' 1 and 1 held in juxtaposition by means of machine screws 2. Blocks 1 and 1 are provided with an intermediately disposed cvlindrical opening 3 adapted to carry a vertically reciprocative gripper plunger 4 having a plunger rod 5 attached to its upper end carrying a gripping block (3. The func tion of this gripping block will be clearly delineated hereinafter. Rociprocatory motion of the plunger 4- may be secured by the admission or exhaustion of air into or out of the cylinder 3 which is connected with an intake port 7 and an exhaust port 8 provided in block 1. An intakepipe 9 connected with an air supply source. and an exhaust pipe 10, are held by a plate 11 attached to block 1 so that the exhaust pipe will register with the exhaust port and the intake pipe will register with an intake chamber 12 in block 1 connecting with the intake port 7.

the valve rod 13 is limited by means of a stop plate 16 attached to block 1 so as to engage a recess 17 provided in the under side of valve rod 13. It is desirable, as will be hereinafter shown, that the valve-rod-orifice 15 be held normally in register with the intake port 7; therefore, a helical compression spring 18 is provided and surrounds the rearwardly projecting end of the valve rod 13, its outer end engaging an enlarged head 19 on valve rod 13 and its opposite end abutting the block 1, thereby holding the valve rod 13 normally at its rearward limit of: trawl, which is so arranged as to hold the valve-rod-orifice 15 in its proper co-axial relation with the intake port 7. Forward movement of valve-rod 13, tending, to compress the spring 18, is limited so as to per mit the orifice 1.5 to-register with exhaust port 8. A bracket 20 having a handle 21 v and rear extension 22 is rigidly attached to the upper ends of the blocks 1, 1 and 1 and is provided with a bearing 23 mounted on legs 24. The bearing 23 is adapted to engage a cross rod 25 upon which the control carriage is. arranged to slide. The aforementioned gripping block 6 is held within a bearing :26 provided below the bearing 23 so as to permit the concave grip surface 6 of the gripping block 6 to engage the cross rod 25 when suilicient air is applied beneath the gripping plunger 4, thereby holding the control carriage in afixed position when desired. Actuation of the valve-rod 13 is secured through a lever 27 forked at 30 and having a handle 28, and pivotally mounted at 29 upon the lower side of the handle 21. The forked ends 30 of lever 27 are adapted to engage a reduced neck 31 of the valve rod 13 upon which is mounted a retaining washer 32 held in place by a nut 33. It is obvious now that upward actuation of the handle 28 will release the gripping block 6 and permit the control carriage 1 to travel along the length of the crossrod 25 when so propelled.

' The aforementioned block 1 of the carria'ge 1 has attached to it a hollow piston rod 34 divided transversely into two air ducts 35 and 36 and carrying a piston 37 mounted within a cylinder 38, having cylinder heads 39. The air duct 35 is stopped ofi' near the piston end and its course diverted transversely at 40 before reaching the piston 37. The air duct 36. however, is permitted to continue through the piston 37 thereby allowing air to be introduced into the cylinder 38 either before or behind the piston 37 as will be further described. Block 1 is provided with intake ports 41 and 42 registering respectively with air ducts 35 and 36. EX- haust ports 43 and 44 are also provided in block 1 and are respectively connected. by means of passages 45 and 46 with the intake ports-41 and 42. Block 1 is provided with To admit air from thepassage 50 to the intake port 49 the valve rod 13 is provided with a groove 51 which is so disposed as to register with the intake-passage 50 and the intake port 49 when held in forward posi tion but is out of register with the intake passage 50 when in normal posit-ion. In order to relieve any back pressure in the intake port 49 when the valve rod is 111 normal.

position, a relief port 52 is provided in block 1, registering with the groove 51 when the valve rod is in its normal position. For controlling the direction of the air supply in cylinder 38 a reversing valve-bar 53 is reciprocatively mounted in a groove 54 in block 1 adjacent to block 1 so as to separate respectively the ports 41, 42, 43 and 44 in block 1*, and 49,49, 47 and 48 in block 1. Valve-bar 53 is provided with orifices 55, 56, 5'7 and 58 connecting the ports 43 with 47 and 42 with 49, or 41 with 49 and 44 with 48 so as toadmit air through duct 36 into cylinder 38 behind the piston 37 while exhausting air from front of the piston 37 through duct 35 or so as to admit air through duct 35 into cylinder 38 in front of.

the piston 37, vwhile exhausting air from behind the piston 37 through duct 36.

The valve bar 53 is pivotally attached at its upper end to a lever 59 by means of a pin 60 held in a longitudinal slot 61. Lever 59 is 'pivotally attached at its rearward end to the bracket extension 22 at 62 and I is normally held up by a helical compression spring 63 disposed resiliently between the lever 59 and the handle 21.

Although thecarriage has been described as comprising three blocks each provided with certain ports, I do not wish to be limited to this construction as it is clearly evident that the same results may be obtained by making the three blocks integral; although this would make it more difficult to ports and valve-seats. Various other alterations 1n the construction of my device may also be made without materially affecting properly machine and finish the various provided with orifices 61 65 and 66' registering respectively with ports 43 and 41 and duct 10 and separating the passages 45 and 46.

In Figs. 1 and 2 I show a gang edger 67 equipped with my device, the cross rod 25 being held horizontally in brackets 68 and 69 attached to the edger. At 70 is shown an auxiliary support or guide rail adapted to carry the supporting arms 71 attached to the carriage 1 and having a guide-ranchgaging grooves '72. The cylinders 38 are held in the bracket 69 and support ,73. The bracket extensions 22 of the control carriagcs are provided with forked arms 7-1 adapted to engage and regulate the location of the saws 75 on their feathered shaft 76. In order to facilitate the proper spacing of .the saws for various widths of lumber. an

indexed cross-bar 77 is attached to the edger parallel to the cross rod points 78 being attached to the control carriage and registering with the indices on the cross bar 77. In Fig. 3 is shown a gang edger (7T equipped with an over-head controlled power set-works in which the cylinder supports 73, cross rod 25. index bar 77. guide rail 7 a and control carriages 1 are mounted on an overhead frame 79.

The saws T5 are shown regulated by the old style. hand propelled sct works R0 traveling on their guide rail $1 but with the hand levers removed. The setting carriages are operated by the control carriages 1 through the medium of connecting cables $42 which pass over sheaves 93 and Rl. the sheaves H3 being revolubly mounted on brackets attached to the overhead frame 79 and the sheaves Sl beingrevolublymounted on the edger frame 67.

It is lllldcl'stmnl that the control carriage may be located at any desired point near the edger and connected therewith by means of cables as shown. or by any other suitable connecting means.

If desired, my set-works may be used to control the location of saws in machines other than edgcrs.

lVhat I claim, is

1. A mechanism for moving saws to different operative positions comprising in combination with a saw movably mounted, a cylinder, a piston working therein and operatively connected with said saw, a source of operating fluid with connections for operating said piston in said cylinder. :1 controlling mechanism for controlling the sup ply of fluid to said cylinder. and a locking mechanism with piston and cylinder for operating the same to lock said saw in different operating positions. ,said controlling mechanism being adapted to turn the supply of operating fluid from said saw mov ing cylinder to the cylinder of said locking mechanism, for the purpose referred to.

2. In an edger or the like, in combination, an arbor. a saw movably mounted thereon and movable longitudinally thereof, a power shifting mechanism for moving said saw on said arbor comprising a cylinder, a,

piston working in said cylinder and operatively connected with said saw for positively moving it in opposite directions on said arbor. a source of operating fluid with connections for operating the piston in said cylinder, a controlling mechanism for controlling the supply of lluid to said cylinder at either side of said piston. whereby said saw is positively moved on said arbor to dilferent operating positions. and means controlled by said controlling mechanism for automatically locking said saw in the stopped position.

3. In an edger or the like. in combination, an arbor, a saw movably mounted thereon and movable longitudinally thereof, a power shifting mechanism for moving said saw on said arbor conn'n'ising a cylinder, a piston working therein and operatively connected with said saw. a source of operating fluid with connections for operating the piston in said cylinder. a controlling mechanism for controlling the supply of fluid to said cylinder at either side of said piston. said c0ntrolling mechanism having a part controlling the iassageways to said cylinder and a part controlling the supply of operating fluid to said passageways. and means holding the part which controls the passageways in a position to admit the operating fluid to that side of the piston for moving the saw away from the. work. whereby in order to move the saw toward the work. said pas-- sagcway-controlling-part must be manually operated. substantially as described.

4. In an edger or the like. in combination, an arbor. a saw slidably mounted thereon. a power shifting mechanism for moving said saw on said arbor comprising a cylinder, :1 piston operatively connected with said saw, a source of operating fluid with connections into said cylinder. a locking mechanism for locking said saw in dill'crent positions of ad justment longitudinally of said arbor, :1 cylinder and piston for operating the same. with supply connections to said source of operating fluid. and a controlling mechaa saw slidably mounted thereon and movable longtudinally thereof, a power shifting mechanism for positively moving said saw in opposite directions on said arbor, said mechanism comprising a cylinder, a piston working therein and operatively connected with said saw, a source of operating fluid for moving said piston with supply connections to said cylinder, and a controlling mechanism movably mounted and moving with said saw and having a part controlling the passageways to the opposite sides of the piston in said cylinder with means normally holding it in one position, and a part controlling the admission of operating fluid to said passageways, both of said parts being manually operable, and a locking mechanism for locking said saw in stopped positions with operating connections to said controlling mechanism adapted to be operated automatically through the part which controls the admission of the operating fluid to the saw operating cylinder.

6. In an edger or the like, a supporting frame, an arbor mounted therein, a saw slid- 'ably mounted on said. arbor and movable longitudinally thereof, a power shifting mechanism for positively moving said saw part opens the passageway to the cylinder at one side or the other of the piston, and the movement of the other part admits the operating fluid to said passageway.

,7. In a device of the character described, in combination with a saw movably mounted, a piston and cylinder with operative connections for moving said saw in opposite directions, a locking mechanism with piston and cylinder connected to operate the same, a source of operating fluid with supply connections to both of said cylinders, and controlling mechanism interposed with a part controlling the passageways to said cylinders and a part controlling the admis sion of said operating fluid thereto, said controlling mechanism being operable to turn the supply of operating fluid from one cylinder to the other.

8. In an edger or the like, in combination, a supporting frame, an arbor mounted therein, a saw slidably mounted on said arbor and movable longitudinally thereof, a cylinder with piston working therein, a source of operating fluid for said cylinder with supply connections thereto, a controlling mechanism for controlling the supply of operating fluid to said cylinder, operating connections from the piston of said cylinder to said saw and to said controlling mechanism whereby both are moved with said piston, means for holding said saw in stopped position, said controlling mechanism having a part adapted to control the passageways and being normally held in one position whereby to admit said operating fluid to said cylinder to move the saw away from the work, and another part adapted to open the supply of operating fluid to said passageways, said parts being manually operable at will and adapted to set said holding means in operation to hold the saw in stopped position when moved to, out OK the supply of opera-ting fluid to said saw-moving cylinder, substantially as described.

In testimony whereof I afiix my signature in the presence of two witnesses.

Gr. BLAlNE NIssEN, H. A. ARMSTRONG. 

